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Class Information
Number: 420/15
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > 1.7 percent or more carbon containing > 2.7 percent or more carbon equivalent containing (i.e., cast iron) > Chromium containing
Description: Alloy or metallic composition ... which additionally contains chromium.










Sub-classes under this class:

Class Number Class Name Patents
420/16 Nickel containing 24


Patents under this class:

Patent Number Title Of Patent Date Issued
8629748 Wire-wound inductor Jan. 14, 2014
8540932 Ferritic spheroidal graphite cast iron Sep. 24, 2013
8480820 Ferrous abrasion resistant sliding materials and sliding members Jul. 9, 2013
8454764 Ni-25 heat-resistant nodular graphite cast iron for use in exhaust systems Jun. 4, 2013
8187529 Wear resistant alloy and method of producing thereof May. 29, 2012
7922836 Ferrous abrasion resistant sliding material Apr. 12, 2011
7846381 Ferritic ductile cast iron alloys having high carbon content, high silicon content, low nickel content and formed without annealing Dec. 7, 2010
7824605 As-cast carbidic ductile iron Nov. 2, 2010
7083685 Gray cast iron member Aug. 1, 2006
6764554 Refining element for a refining disk Jul. 20, 2004
6613274 Cast iron alloy and method of making the same Sep. 2, 2003
6511554 Stainless spheroidal carbide cast iron material Jan. 28, 2003
6406563 Stainless spheroidal carbide cast iron Jun. 18, 2002
6348109 Steel material and method for its manufacturing Feb. 19, 2002
6057045 High-speed steel article May. 2, 2000
6053990 Perlitic grey iron for brake components Apr. 25, 2000
5948353 Gray iron composition and brake components formed thereof Sep. 7, 1999
5894010 Optimized gray cast iron plate alloy for utility vehicle brake disks Apr. 13, 1999
5858127 Metal alloys and brake drums made from such alloys Jan. 12, 1999
5738734 Centrifugal cast roll shell material Apr. 14, 1998
5316596 Roll shell material and centrifugal cast composite roll May. 31, 1994
5306568 High Young's modulus materials and surface-coated tool members using the same Apr. 26, 1994
5215604 Long-wear packerhead segment Jun. 1, 1993
5032194 Pig iron for the manufacture of brake drums Jul. 16, 1991
4929416 Cast steel May. 29, 1990
4891076 Gray cast iron having both increased wear resistance and toughness Jan. 2, 1990
4889687 Nodular cast iron having a high impact strength and process of treating the same Dec. 26, 1989
4880461 Super hard high-speed tool steel Nov. 14, 1989
4859414 Alloy for disk rotor Aug. 22, 1989
RE32925 Novel amorphous metals and amorphous metal articles May. 16, 1989
4726417 Adamite compound roll Feb. 23, 1988
4721153 High-chromium compound roll Jan. 26, 1988
4400208 Process for the production of iron, phosphorus, carbon and chromium based amorphous metal alloys, and the alloys obtained Aug. 23, 1983
4342588 Wear resistant cast iron Aug. 3, 1982
4243414 Slidable members for prime movers Jan. 6, 1981
4235623 Continuous smelting method for ferrochrome Nov. 25, 1980
3977868 Nitrogen containing additive for strengthening cast iron Aug. 31, 1976
3977867 Gray iron casting composition with controlled iron-chromium carbide content Aug. 31, 1976
3941589 Abrasion-resistant refrigeration-hardenable white cast iron Mar. 2, 1976











 
 
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